US 12,245,852 B2
Optical sensors for use in vital sign monitoring
Jim Moon, Portland, OR (US); Devin McCombie, San Diego, CA (US); Matt Banet, San Diego, CA (US); and Marshal Dhillon, San Diego, CA (US)
Assigned to SOTERA WIRELESS, INC., Carlsbad, CA (US)
Filed by SOTERA WIRELESS, INC., Carlsbad, CA (US)
Filed on Mar. 20, 2023, as Appl. No. 18/123,832.
Application 18/123,832 is a continuation of application No. 13/292,923, filed on Nov. 9, 2011, granted, now 11,607,152.
Application 13/292,923 is a continuation in part of application No. 12/650,374, filed on Dec. 30, 2009, granted, now 9,161,700, issued on Oct. 20, 2015.
Application 13/292,923 is a continuation in part of application No. 12/559,413, filed on Sep. 14, 2009, granted, now 8,554,297, issued on Oct. 8, 2013.
Application 13/292,923 is a continuation in part of application No. 12/487,283, filed on Jun. 18, 2009, abandoned.
Application 13/292,923 is a continuation in part of application No. 12/171,886, filed on Jul. 11, 2008, granted, now 8,506,480, issued on Aug. 13, 2013.
Application 13/292,923 is a continuation in part of application No. 12/138,194, filed on Jun. 12, 2008, granted, now 8,419,649, issued on Apr. 16, 2013.
Application 12/650,374 is a continuation in part of application No. 12/138,194, filed on Jun. 12, 2008, granted, now 8,419,649, issued on Apr. 16, 2013.
Claims priority of provisional application 61/218,062, filed on Jun. 17, 2009.
Claims priority of provisional application 61/218,057, filed on Jun. 17, 2009.
Claims priority of provisional application 61/218,060, filed on Jun. 17, 2009.
Claims priority of provisional application 61/218,055, filed on Jun. 17, 2009.
Claims priority of provisional application 61/218,061, filed on Jun. 17, 2009.
Claims priority of provisional application 61/218,059, filed on Jun. 17, 2009.
Claims priority of provisional application 61/073,681, filed on Jun. 18, 2008.
Claims priority of provisional application 60/983,198, filed on Oct. 28, 2007.
Claims priority of provisional application 60/949,052, filed on Jul. 11, 2007.
Claims priority of provisional application 60/943,464, filed on Jun. 12, 2007.
Prior Publication US 2023/0225633 A1, Jul. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/11 (2006.01); A61B 5/00 (2006.01); A61B 5/1455 (2006.01); A61B 5/25 (2021.01); A61B 5/0205 (2006.01); A61B 5/022 (2006.01); A61B 5/0245 (2006.01); A61B 5/08 (2006.01)
CPC A61B 5/1116 (2013.01) [A61B 5/1118 (2013.01); A61B 5/14551 (2013.01); A61B 5/25 (2021.01); A61B 5/6826 (2013.01); A61B 5/6838 (2013.01); A61B 5/7207 (2013.01); A61B 5/0002 (2013.01); A61B 5/02055 (2013.01); A61B 5/02225 (2013.01); A61B 5/0245 (2013.01); A61B 5/0816 (2013.01); A61B 5/1117 (2013.01); A61B 5/7225 (2013.01); A61B 5/7239 (2013.01); A61B 5/746 (2013.01); A61B 2560/0412 (2013.01); A61B 2560/0462 (2013.01); A61B 2560/0468 (2013.01); A61B 2562/0219 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An optical sensor configured to determine an optical signal indicative of a photoplethysmography waveform and calculate therefrom peripheral arterial blood oxygen saturation (SpO2) pulse rate values, the sensor comprising:
a flexible housing configured to wrap around the base of the patient's thumb and position over the interior base of the thumb proximate to a princeps pollicis artery, the flexible housing comprising (i) a first light source that emits optical radiation, wherein the first light source comprises a first substantially planar surface, (ii) a photodetector configured to detect the optical radiation and to generate the optical signal, wherein the photodetector is positioned on a substrate comprising a second substantially planar surface, (iii) circuitry configured to receive the optical signal and covert the optical signal into a photoplethysmograph waveform; and (iv) a plurality of living hinges, the first and second substantially planar surfaces are supported by the flexible housing such that the first substantially planar surface is separated from the second substantially planar surface by an included angle between 35-55 degrees, wherein the included angle is an angle formed between a first line drawn parallel to the first substantially planar surface and a second line drawn parallel to the second substantially planar surface, wherein the flexible housing is an approximately semicircular housing with the plurality of living hinges radially spaced apart from each other along a circumference of the approximately semicircular housing; and
a processing unit configured to receive the photoplethysmograph waveform and determine therefrom time-dependent pulsatile alternating current (AC) and non-pulsatile direct current (DC) signals indicative of a heartbeat-induced pulse and calculate the SpO2 and pulse rate values.